The research progress on corrosion and protection of silver layer

Abstract

In this paper, the mechanism and reason of silver corrosion and discoloration are discussed. The analysis and characterization of silver corrosion layer and the cleaning method of the discoloration part of silver are described. There are two methods for silver anti-corrosion and anti-tarnish. One is to develop anti-discoloration silver alloy. The other is to treat silver layer surface, which includes:

Highly Transparent, Flexible, and Hydrophobic Polytetrafluoroethylene Thin Film Passivation for ITO/AgPdCu/ITO Multilayer Electrodes

“…It was evident that after the 85 °C and 85% RH test, there were more black spots in the bare IAI than those in the PTFE/IAI. [61,62] We used XPS depth profiling and HR-TEM to analyze why the black spots were www.advmatinterfaces.de generated. Figure 5b,c shows the XPS depth profiling of the bare IAI and PTFE/IAI before and after the 85 °C and 85% RH test, respectively, which identified the atomic percent of the In, Sn, O, Ag, C, and F elements according to the depth of electrodes.…”

“…Impurities and moisture could diffuse through this top ITO into the APC layer, and degrade the IAI multilayer film. [19] In the atmosphere, there are various kinds of corrosive media, such as oxygen (O 2 ), sulfur dioxide (SO 2 ), slight hydrogen sulfide [61,65] . Because the APC interlayer acted as a main conduction path for electrons and created an anti-reflection effect in the bare IAI, the agglomeration of the APC layer resulted in severe degradation of the electrical and optical properties of the bare IAI.…”

“…[ 19 ] In the atmosphere, there are various kinds of corrosive media, such as oxygen (O 2 ), sulfur dioxide (SO 2 ), slight hydrogen sulfide (H 2 S), organic sulfide (OCS, CS 2 , CH 3 SCH 2 ), elemental sulfur (S 8 ), nitride (NO x , NH 3 , HNO 3 ), mixture of various gases, free radicals and peroxides (H 2 O 2 , O 3 ), chloride (Cl 2 , HCl), carbide (CO 2 ), organics (HCHO, HCOOH, CH 3 COOH), sulfide solution (Na 2 S, NaHS), and moisture (H 2 O). These corrosive media corroded Ag into sulfides and sulphates (Ag 2 S, Ag 2 SO 3 , Ag 2 SO 4 , Ag 2 S 2 O 3 ), oxide and carbonate (AgO, Ag 2 O, α‐Ag 2 CO 3 , β‐Ag 2 CO 3 , γ‐Ag 2 CO 3 ), chloride (AgCl), nitrogen compounds (AgNO 3 ), organic compounds (AgCO 2 CH 3 , AgCO 2 H, Ag 2 C 2 O 4 ), and caused the corresponding APC layer agglomeration and discoloration [ 61,65 ] . Because the APC interlayer acted as a main conduction path for electrons and created an anti‐reflection effect in the bare IAI, the agglomeration of the APC layer resulted in severe degradation of the electrical and optical properties of the bare IAI.…”

Nanocrystalline Ag–C Composites Containing a Hexagonal Diamond Structure to Inhibit Tarnishing of Sterling Silver

“…The tarnishing process is a naturally occurring phenomenon connected to the interaction between silver- and sulfur-containing compounds found within the surrounding environment. Numerous studies have concentrated on incorporating Ag alloy additives to prevent oxidation and tarnishing. , Ag-based coatings hold great promise as a solution to increase antitarnish properties . Therefore, exploring a high improvement in the antitarnish property of incorporating an Ag-based composite is quite a substantial goal.…”

“…21,22 Ag-based coatings hold great promise as a solution to increase antitarnish properties. 23 Therefore, exploring a high improvement in the antitarnish property of incorporating an Ag-based composite is quite a substantial goal.…”